The MENU/ENTER and TRACK/CLR TRK keys (buttons) on my Simrad AI50 AIS have stopped working. Has anyone else seen this problem, and is there a simple fix (other than taking it to a technician, which doesn't exist where I'm cruising)?

All other keys work fine, and the unit receives and transmits OK -- so I have basic AIS without the dead keys. It sure would be good to have the menu key back, however.

I couldn't find any information on this problem at the Simrad website or by doing a Google search. Surely I can't be the first person to experience this.

Many thanks for any help you can provide. Feel free to PM me or post here. All ideas welcome!